A man has taken to social media to share the 'hardest logic puzzle in the world' - and it has taken some people 45 minutes to make sense of it before even attempting to solve it ...

Across the world, 8% to 10% of people have blue eyes, which is still second place to brown eyes, which 70% to 80% of all ...

We see higher frequencies of light as blue or violet, lower frequencies of light are seen as red and orange. Green light is in the middle. Our eyes only detect three colours: red, green and blue.

4. Bold Cobalt Blue: Cobalt blue is a statement-making color that can make green eyes appear even more striking. This bold ...